core_sha256: SHA-256 hex digest (C backend)

In rmoriebricklayer: Reproducible Data Capsules with Provenance and Fallback

SHA-256 hex digest (C backend)

Description

Hashes character or raw input with the self-contained SHA-256 in the rmoriebricklayer core. For a character vector each element is hashed as its UTF-8/native bytes; for a raw vector the raw bytes are hashed. This is the same routine sibling packages use for provenance via LinkingTo: rmoriebricklayer.

Usage

core_sha256(x)

Arguments

x	A character vector or a raw vector.

Value

A character vector of 64-character lowercase hex digests (one per element for character input; length-1 for raw input).

Examples

# Hash a character scalar (NIST test vector for "abc").
core_sha256("abc")
# ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad

# Vectorised over character input: one digest per element.
core_sha256(c("abc", "def"))

# Raw input hashes the bytes directly; identical to the character form.
identical(core_sha256("abc"), core_sha256(charToRaw("abc")))

# Fingerprint an arbitrary object via its serialization.
core_sha256(serialize(list(a = 1L, b = "x"), NULL))

rmoriebricklayer documentation built on Aug. 5, 2026, 9:08 a.m.